Question

find the remainder when x3+3x2+1 is divided by x+1

Answer 1

Answer:

4

Step-by-step explanation:

By remainder theorem

x+1=0

x=−1

p(x)=x ^3  + 3x ^2 −3x−1

p(−1) = (−1)^3  +3(−1)^2 −3(−1)−1

=−1+3(1)+3−1

=−1+3+3−1

=6−2

=4

Thus remainder is 4

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